twl6030: move twl6030 register access functions to common header file

twl6030_i2c_[read|write]_u8 can be used else where to access
multi-function device such as twl6030, so move the register access
functions to the common twl6030.h header file.

Signed-off-by: Nishanth Menon <nm@ti.com>

drivers/power/twl6030.c

@@ -25,17 +25,6 @@
 
 #include <twl6030.h>
 
-/* Functions to read and write from TWL6030 */
-static inline int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
-{
-	return i2c_write(chip_no, reg, 1, &val, 1);
-}
-
-static inline int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val)
-{
-	return i2c_read(chip_no, reg, 1, val, 1);
-}
-
 static int twl6030_gpadc_read_channel(u8 channel_no)
 {
 	u8 lsb = 0;

include/twl6030.h

@@ -126,6 +126,17 @@
 #define GPCH0_LSB	0x57
 #define GPCH0_MSB	0x58
 
+/* Functions to read and write from TWL6030 */
+static inline int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
+{
+	return i2c_write(chip_no, reg, 1, &val, 1);
+}
+
+static inline int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val)
+{
+	return i2c_read(chip_no, reg, 1, val, 1);
+}
+
 void twl6030_init_battery_charging(void);
 void twl6030_usb_device_settings(void);
 void twl6030_start_usb_charging(void);